@hrh_fourtyseven No problem, but rig building comes down to your opinions, priorities and beliefs. Some people will put in a beefy CPU and CPU plot/mine, others will sacrifice a GPU for the plotting period. There is no exact answer, it's all down to personal choices.
My mobo has 1 usb 3.1 gen2 and 4 usb 3.1 gen1 (Normal usb 3) so dose it mean I have 2 usb controller on my mobo? if yes can I connect 4 HDD to USB 3 ports and a hub for usb 3.1 gen2 to connect the other 4 HDD's without sacrificing the speed?